使用 Ajax 调用 WCF - 404 错误

Question

我一直在尝试遵循此 article 并创建一个 WCF 服务以通过 Ajax 调用进行访问。我的 Ajax 电话收到 404，我不知道为什么，因为它看起来没问题。有人可以帮我修复 404 错误并告诉我哪里有命名空间或其他错误吗？

在有人对我大吼大叫之前，我从未创建过 WCF 服务（更不用说从 Ajax 调用它了）所以我正在关注这篇文章，其中说现在不要担心接口 :)

namespace SearchService
{
    [ServiceContract]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class Search
    {
        [OperationContract]
        [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest)]
        public string SearchFiles(string searchText)
        {
            StringBuilder result = new StringBuilder();

            try
            {
                string currentFolder = Path.GetDirectoryName(@"C:\somefolder\views\filteredViews\");

                string[] files = Directory.GetFiles(currentFolder, "*.htm");

                foreach (string file in files)
                {
                    string contents = File.ReadAllText(file);

                    if (contents.Contains(searchText))
                    {
                        result.AppendLine(file);
                        result.Append("|");
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

            return result.ToString();
        }
    }
}

<system.serviceModel>
    <behaviors>
        <serviceBehaviors>
            <behavior name="SearchServiceBehavior">
                <serviceMetadata httpGetEnabled="true" />
                <serviceDebug includeExceptionDetailInFaults="true"/>
            </behavior>
        </serviceBehaviors>
        <endpointBehaviors>
            <behavior name="webEndPointBehavior">
                <webHttp/>
            </behavior>
        </endpointBehaviors>
    </behaviors>
    <protocolMapping>
        <add binding="basicHttpsBinding" scheme="https" />
    </protocolMapping>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" 
                               multipleSiteBindingsEnabled="true" />
    <services>
        <service name="SearchService.Search" behaviorConfiguration="SearchServiceBehavior">
            <endpoint address="" 
                      contract="SearchService.Search" 
                      binding="webHttpBinding" 
                      behaviorConfiguration="webEndPointBehavior" 
                      name="webEndPoint" />
        </service>
    </services>
</system.serviceModel>

var Type;
var Url;
var Data;
var ContentType;
var DataType;
var ProcessData;

$("#searchButton").click(function () {
    var searchText = $("#searchText").val();
    Type = "POST";
    Url = "Search.svc/SearchFiles";
    Data = '{"' + searchText + '"}';
    ContentType = "application/json; charset=utf-8";
    DataType = "json";
    varProcessData = true;
    CallService();
});

// Function to call WCF  Service       
function CallService() {
    $.ajax({
        type: Type,                 //GET or POST or PUT or DELETE verb
        url: Url,                   // Location of the service
        data: Data,                 //Data sent to server
        contentType: ContentType,   // content type sent to server
        dataType: DataType,         //Expected data format from server
        processdata: ProcessData,   //True or False
        success: function(msg) {    //On Successfull service call
            ServiceSucceeded(msg);
        },
        error: ServiceFailed        // When Service call fails
    });
}

function ServiceFailed(result) {
    alert('Service call failed: ' + result.status + '' + result.statusText);
    Type = null;
    varUrl = null;
    Data = null; 
    ContentType = null;
    DataType = null;
    ProcessData = null;
}

function ServiceSucceeded(result) {
    if (DataType == "json") {
        alert("It worked" + result);
    }
}

function ServiceFailed(xhr) {
    if (xhr.responseText) {
        var err = xhr.responseText;
        if (err)
            error(err);
        else
            error({ Message: "Unknown server error." })
    }

    return;
}

Answer 1

嗯，看来我的服务设置正确。当我试图从 Ajax 调用它时出现了问题。似乎不是把它放在 Ajax 调用中：

Url = "Search.svc/SearchFiles";

我需要在 Ajax 调用中包含这个：

url: "http://localhost:57761/Search.svc/SearchFiles"

除非我在搜索中遗漏了这个（或者我仍然错了），否则就是全部了。

如果有人想进一步解释这一点（或者特别添加一个 link 来解释差异），请做。

使用 Ajax 调用 WCF - 404 错误

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